noun 1. (astronomy) a large, almost circular, emission nebula in the constellation Vela and Puppis. Thought to be the remains of a supernova explosion 1 million years ago, it is estimated to lie 1300 light years away

noun 1. . /ˈɡʌmˌwiːd/ noun 1. any of several American yellow-flowered plants of the genus Grindelia, esp G. robusta, that have sticky flower heads: family Asteraceae (composites)

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